Génération de publications Facebook virales avec Gemini 2.0 et génération d'images AI

• •Compte Google et informations d'identification Gmail API
• •Peut nécessiter les informations d'identification d'authentification de l'API cible
• •Informations d'identification Google Sheets API
• •Informations d'identification Facebook Graph API
• •Clé API Google Gemini

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      "parameters": {
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        "content": "# Complete Setup Guide: AI Facebook Post Generator\n\n## Prerequisites Checklist\n\nBefore starting, ensure you have:\n- [ ] n8n instance (cloud or self-hosted)\n- [ ] Facebook Business Page (not personal profile)\n- [ ] Google account with access to Sheets and Gmail\n- [ ] Basic understanding of API credentials\n\n**Estimated Setup Time**: 30-45 minutes\n\n---\n\n## Step 1: Facebook Integration Setup\n\n### 1.1 Create Facebook App\n1. Go to [Facebook Developers](https://developers.facebook.com/)\n2. Click **\"My Apps\"** → **\"Create App\"**\n3. Choose **\"Business\"** as app type\n4. Enter app name: `n8n-facebook-poster` (or your preferred name)\n5. Click **\"Create App\"**\n\n### 1.2 Configure Facebook App\n1. In your app dashboard, go to **\"Add a Product\"**\n2. Find **\"Facebook Login\"** and click **\"Set Up\"**\n3. Go to **Settings** → **Basic**\n4. Add your domain to **\"App Domains\"** (for n8n cloud: `app.n8n.cloud`)\n5. Save changes\n\n### 1.3 Get Page Access Token\n1. Go to **Tools** → **Graph API Explorer**\n2. Select your app from the dropdown\n3. Click **\"Generate Access Token\"**\n4. Grant permissions: `pages_manage_posts`, `pages_read_engagement`, `pages_show_list`\n5. Select your Facebook page\n6. Copy the **Page Access Token** (starts with `EAAG...`)\n7. **Important**: Extend token to long-lived:\n   - Use Graph API Explorer\n   - Make GET request to: `/oauth/access_token?grant_type=fb_exchange_token&client_id=YOUR_APP_ID&client_secret=YOUR_APP_SECRET&fb_exchange_token=YOUR_SHORT_TOKEN`\n\n### 1.4 Get Your Page ID\n1. Go to your Facebook page\n2. Click **\"About\"** tab\n3. Scroll down to find **\"Page ID\"** or\n4. Use Graph API Explorer: GET request to `/me/accounts` with your token\n\n---"
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        "content": "\n## Step 2: Google Services Setup\n\n### 2.1 Enable Google APIs\n1. Go to [Google Cloud Console](https://console.cloud.google.com/)\n2. Create new project or select existing one\n3. Go to **\"APIs & Services\"** → **\"Library\"**\n4. Enable these APIs:\n   - Google Sheets API\n   - Gmail API\n   - Google Drive API (optional)\n\n### 2.2 Create Service Account\n1. Go to **\"APIs & Services\"** → **\"Credentials\"**\n2. Click **\"Create Credentials\"** → **\"Service Account\"**\n3. Name: `n8n-facebook-automation`\n4. Click **\"Create and Continue\"**\n5. Skip role assignment (click **\"Continue\"**)\n6. Click **\"Done\"**\n\n### 2.3 Generate Service Account Key\n1. Click on your service account email\n2. Go to **\"Keys\"** tab\n3. Click **\"Add Key\"** → **\"Create New Key\"**\n4. Choose **\"JSON\"** format\n5. Download the JSON file (save securely)\n\n### 2.4 Prepare Google Sheets\n1. Create two Google Sheets:\n   - **Content Log Sheet**: For tracking generated content\n   - **Input Tracking Sheet**: For logging form submissions\n\n2. **Content Log Sheet Structure**:\n   - Column A: (Date)\n   - Column B: (Short Content)\n   - Column C: (Full Content)\n\n3. **Input Tracking Sheet Structure**:\n   - Column A: \"Date\"\n   - Column B: \"Time\"\n   - Column C: \"Content\"\n\n4. Share both sheets with your service account email (found in the JSON file)\n\n---\n"
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        "content": "\n## Step 3: AI Services Setup\n\n### Get Gemini API Key\n1. Go to [Google AI Studio](https://makersuite.google.com/app/apikey)\n2. Sign in with your Google account\n3. Click **\"Create API Key\"**\n4. Copy the API key (starts with `AIza...`)\n---\n\n## Step 4: n8n Configuration\n\n### 4.1 Import the Workflow\n1. Copy the workflow JSON from the template\n2. In n8n, click **\"Import from JSON\"**\n3. Paste the workflow JSON\n4. Click **\"Import\"**\n\n### 4.2 Configure Credentials\n\n#### Facebook Graph API Credentials\n1. Go to **Settings** → **Credentials**\n2. Click **\"Add Credential\"**\n3. Search for **\"Facebook Graph API\"**\n4. Enter:\n   - **Access Token**: Your Page Access Token from Step 1.3\n5. Test the connection\n6. Save as: `Facebook Page Access`\n\n#### Google Credentials  \n1. Add **\"Google Service Account\"** credential\n2. Upload the JSON file from Step 2.3\n3. Test connection\n4. Save as: `Google Services`\n\n#### Gemini API Credentials\n1. Add **\"Google PaLM API\"** credential\n2. Enter your Gemini API key from Step 3.1\n3. Save as: `Gemini AI`\n\n### 4.3 Update Node Configurations\n\n#### Update Facebook Page ID\n1. Open **\"Facebook Graph API\"** node\n2. Replace `\"113732581629527\"` with your actual Page ID from Step 1.4\n3. Do the same for **\"Facebook Upload Img\"** node\n\n#### Update Google Sheets IDs\n1. Open **\"save content\"** node\n2. Replace the Document ID with your Content Log Sheet ID\n3. Open **\"Append row in sheet\"** node  \n4. Replace the Document ID with your Input Tracking Sheet ID\n\n**To find Sheet ID**: Look at the URL - it's the long string after `/spreadsheets/d/`\n\n#### Update Email Address\n1. Open **\"Send a message\"** node\n2. Replace `xxx@gmail.com` with your email\n3. Configure Gmail credentials if not already done\n\n---\n"
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        "content": "\n## Step 5: Testing & Validation\n\n### 5.1 Test Individual Components\n\n#### Test Google Sheets Connection\n1. Right-click **\"Append row in sheet\"** node\n2. Click **\"Execute Node\"**\n3. Check if a test row appears in your sheet\n\n#### Test Gemini AI\n1. Right-click **\"Basic LLM Chain\"** node\n2. Add test data in **\"Edit Input Data\"**\n3. Execute and verify AI response\n\n#### Test Image Generation\n1. Right-click **\"HTTP Request\"** node\n2. Ensure it has a valid prompt from previous step\n3. Execute and check for base64 image data\n\n#### Test Facebook Upload\n1. Run the full workflow with test content\n2. Check your Facebook page for the post\n3. Verify image uploaded correctly\n\n### 5.2 End-to-End Test\n1. Click **\"Execute Workflow\"** on the trigger node\n2. Submit test content through the form\n3. Monitor each node's execution\n4. Verify final Facebook post"
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